D Johnson #2
D Johnson #2 is an earth dam located in Fallon County, Montana, built in 1935. It carries a Low hazard potential classification.
About D Johnson #2
The primary purpose of D Johnson #2 is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Quarter Circle Uu Ranch (private). It impounds the Chimney Creek near Marmarth North Dakota.
The dam stands 20 feet tall and stretches 750 feet across, and has a maximum storage capacity of 117 acre-feet. Completed in 1935, the structure is well-established, with more than 75 years of service.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
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Location
| State | Montana |
| County | Fallon |
| Nearest City | Marmarth North Dakota |
| River/Stream | Chimney Creek |
| Coordinates | 46.08070, -104.21930 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 750 ft |
| Year Completed | 1935 (91 years old) |
Storage & Hydraulics
| NID Storage | 117 acre-ft |
| Max Storage | 117 acre-ft |
| Normal Storage | 50 acre-ft |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | QUARTER CIRCLE UU RANCH |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT02398 |
| Federal ID | MT02398 |
| More Info | State Dam Safety Program |